package com.weijian.common.contants;

/**
 * 系统常量类
 */
public class SystemConstants {

    /**
     * JWT相关常量
     */
    public static final String JWT_SALT = "weijian_salt";
    public static final int JWT_TOKEN_EXPIRE_TIME_SECONDS = 60 * 30; // 30分钟


    /**
     * 文档部分相关常量
     */
    private static final String UPLOAD_DIR = "uploads";
    private static final long MAX_FILE_SIZE = 10 * 1024 * 1024; // 10MB


    // 私有构造函数，防止实例化
    private SystemConstants() {
        throw new AssertionError("Cannot instantiate constant class");
    }
}

